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A unifrom current of density `f` flows inside an infinite plate of thickness `2d` parallel to its surface . Find the magentic induction induced by this current as a funcition of the distance `x` from the median palane of the plate. The magnitude permeability is assumed to be equal to unity both inside and outside the plates.

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The correct Answer is:
`B=mu_(0)jx("inside")and B=mu_(0)jd("outside")`
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